Seiko Cal. 6391 - 148

Seiko 6391-148

The 6391-148 is a sought-after Automatic piece from Seiko's golden era. The Coin-Edge bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-91b4fd72ee80]

Also known as: Monster, Golden Tuna

Specifications

Movement
Automatic
Case Material
PVD Black
Case Width
44mm
Case Thickness
13.7mm
Lug Width
22mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
160m
Dial Color
Silver
Jewels
29j
Frequency
36,000 bph
Power Reserve
49 hours
Year
1971

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